CSS Minifier

Paste your CSS code and compress it by removing whitespace, comments, and redundant properties. See the original vs minified size with compression ratio. Copy the minified output with one click. Essential for optimizing website performance.

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Workspace

Use the tool below. Your inputs stay local when the tool supports browser-only processing.

All tools
Minified CSS
Original Size
245 chars
Minified Size
165 chars
Compression Ratio
1.48x
Savings
32.65%

Workflow

How to use the CSS Minifier

1

Paste Your CSS Code

Copy your CSS code from your project and paste it into the input area. This CSS minifier tool accepts any valid CSS including media queries, animations, and complex selectors, then compresses it by removing all unnecessary characters.

2

View the Minified Output

The minified version appears instantly with all unnecessary whitespace, comments, and redundant properties removed. The CSS minifier displays the compression ratio so you can see exactly how much file size you saved for your production stylesheet.

3

Copy and Deploy

Click the copy button to grab the minified CSS and paste it into your production stylesheet. Minifying with this CSS minifier tool reduces page load times and improves website performance scores with minimal effort.

CSS Minifier — Frequently Asked Questions

How much can a CSS minifier improve page load speed?

A CSS minifier typically reduces file size by 30% to 60%, depending on how much whitespace, comments, and redundant code your original stylesheet contains. This translates directly to faster page load times, especially on slower network connections where every kilobyte matters.

Does CSS minification from a CSS minifier tool change how my styles render?

No, a CSS minifier only removes unnecessary characters like spaces, line breaks, and comments without changing any property values, selectors, or functionality. Your styles render identically to the original unminified version after using a CSS minifier.